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Kozłowskiite

A valid IMA mineral species
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04096940017272473404016.jpg
Andrzej J. Kozłowski
Formula:
Ca4(Fe2+Sn3)[Si2O7]2[Si2O6OH]2
Formula according to CNMNC Newsletter 70, establishment of kristansenite group.
Colour:
Pale brownish (in tiny pieces)
Specific Gravity:
3.775 (Calculated)
Crystal System:
Triclinic
Name:
Named after professor Andrzej Janusz Kozłowski, Ph.D. (21 November 1946, Warsaw, Poland), Institute of Geochemistry, Mineralogy and Petrology, Faculty of Geology, Warsaw University, Poland. Known for his studies devoted to mineralogy of both pegmatites (including these at Szklarska Poręba and its vicinity) and fluid inclusions.
Isostructural with:
Kristiansenite, Silesiaite
The Fe2+Sn3-analogue of silesiaite.

Crystal structure details:
* 3/4 of the M sites are Sn-dominant,
* relatively strong hydrogen bonds are present


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Name EncodingHide

CP1252:
Kozlowskiite
Latin-1:
Kozlowskiite
ASCII-7:
Kozlowskiite

Unique IdentifiersHide

Mindat ID:
55754
Long-form identifier:
mindat:1:1:55754:0

IMA Classification of KozłowskiiteHide

IMA status:
Approved
IMA Formula:
Ca4Fe2+Sn4+3(Si2O7)2(Si2O6OH)2
Approval year:
2021
First published:
2022
Type description reference:
Szklarska Poręba Huta quarry, Lower Silesia, Poland

Classification of KozłowskiiteHide

Strunz-mindat (2026):
9.BC.

9 : SILICATES (Germanates)
B : Sorosilicates
C : Si2O7 groups, without non-tetrahedral anions; cations in octahedral [6] and greater coordination

Mineral SymbolsHide

As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

SymbolSourceReference for Standard
KzwIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Physical Properties of KozłowskiiteHide

Colour:
Pale brownish (in tiny pieces)
Density:
3.775 g/cm3 (Calculated)

Chemistry of KozłowskiiteHide

Mindat Formula:
Ca4(Fe2+Sn3)[Si2O7]2[Si2O6OH]2

Formula according to CNMNC Newsletter 70, establishment of kristansenite group.
Element Weights:
Element% weight
O35.926 %
Sn28.560 %
Si18.018 %
Ca12.856 %
Fe4.479 %
H0.162 %

Calculated from ideal end-member formula.
Elements listed:
Ca, Fe, H, O, Si, Sn - search for minerals with similar chemistry

Chemical AnalysisHide

Oxide wt%:
 1
SiO239.46 %
ZrO20.35 %
SnO231.13 %
Al2O30.35 %
Sc2O32.56 %
Fe2O3(tot)5.06 %
MnO0.71 %
CaO18.42 %
H2O(calc.)1.48 %
Total:99.52 %
Empirical formulas:
Sample IDEmpirical Formula
1Ca4.00(Sn2.652Sc0.47Fe2+0.43Fe3+0.34Mn2+0.12Al0.08Zr0.03)?4.00(Si2.00O7)2(Si2.00O6OH)2
Sample references:
IDLocalityReferenceNotes
1Szklarska Poręba Huta granite quarry, Szklarska Poręba, Karkonosze County, Lower Silesian Voivodeship, Poland
Pieczka et al. 2022
by electron microprobe; Fe2O3calc. = 2.26%, FeOcalc. = 2.52%; empirical formula basis: 26O + 2(OH) and 16 cations (Z = 2)

Crystallography of KozłowskiiteHide

Crystal System:
Triclinic
Class (H-M):
1 - Pedial
Cell Parameters:
a = 10.0183(2) Å, b = 8.3861(1) Å, c = 13.3395(2) Å
α = 89.956(1)°, β = 109.039(2)°, γ = 89.979(1)°
Ratio:
a:b:c = 1.195 : 1 : 1.591
Unit Cell V:
1059.4 ų
Comment:
the space group is C1; pseudomonoclinic, i.e., "metrically monoclinic (Laue group 2/m)", α=γ=90°, a = 10.0170(3), b = 8.3860(2), c = 13.3421(4) Å, β = 109.050(3)°, V = 1059.40(5) Å3

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
5.190 Å(73)
4.569 Å(30)
3.906 Å(19)
3.153 Å(65)
3.094 Å(28)
3.089 Å(100)
2.595 Å(27)
2.141 Å(31)
Locality:
Szklarska Poręba Huta granite quarry, Szklarska Poręba, Karkonosze County, Lower Silesian Voivodeship, Poland
Reference:
Szklarska Poręba Huta quarry, Lower Silesia, Poland

Type Occurrence of KozłowskiiteHide

Type Locality:
ⓘ Szklarska Poręba Huta granite quarry, Szklarska Poręba, Karkonosze County, Lower Silesian Voivodeship, Poland
General Appearance of Type Material:
A core band in a zoned silesiaite–kristiansenite crystal.
Place of Conservation of Type Material:
Collections of the Mineralogical Museum, University of Wrocław, Cybulskiego 30, 50–205 Wrocław, Poland, catalogue number MMWr IV7929.
Geological Setting of Type Material:
Pegmatite of the Karkonosze granite, Szklarska Poręba Huta quarry.
Reference:
Szklarska Poręba Huta quarry, Lower Silesia, Poland

Synonyms of KozłowskiiteHide

Other Language Names for KozłowskiiteHide

Relationship of Kozłowskiite to other SpeciesHide

Member of:
Kristiansenite Group
Other Members of Kristiansenite Group:
KristianseniteCa4(Sc2Sn2)[Si2O7]2[Si2O6OH]2Tric. 1
NybergiteCa4Sc3Sn(Si2O7)(Si2O6OH)3Tric. 1 : P1
SilesiaiteCa4(Fe3+2Sn2)[Si2O7]2[Si2O6OH]2Tric. 1

Related Minerals - Strunz-mindat GroupingHide

9.BC.Anorthoyttrialite-(Y)Y4(SiO4)(Si3O10)Tric. 1 : P1
9.BC.05Yttrialite-(Y)(Y,Th)2Si2O7Mon. 2/m : P21/m
9.BC.05ThortveititeSc2Si2O7Mon. 2/m : B2/m
9.BC.05Keiviite-(Y)Y2Si2O7Mon. 2/m : B2/m
9.BC.05Keiviite-(Yb)Yb2Si2O7Mon. 2/m : B2/m
9.BC.05GittinsiteCaZrSi2O7Mon. 2 : B2
9.BC.10ParakeldyshiteNa2ZrSi2O7Tric. 1 : P1
9.BC.10Keldyshite(Na,H)2ZrSi2O7Tric. 1 : P1
9.BC.10KhibinskiteK2ZrSi2O7Mon. 2/m : B2/m
9.BC.10BrunovskyiteNaZrSi2O6(OH) Tric. 1 : P1
9.BC.15RankiniteCa3Si2O7Mon. 2/m : P21/b
9.BC.20BarysilitePb8Mn2+[Si2O7]3Trig. 3m(32/m) : R3c
9.BC.25Edgarbaileyite[Hg2]2+3[Si2O7]Mon.
9.BC.30KristianseniteCa4(Sc2Sn2)[Si2O7]2[Si2O6OH]2Tric. 1
9.BC.30NybergiteCa4Sc3Sn(Si2O7)(Si2O6OH)3Tric. 1 : P1
9.BC.30SilesiaiteCa4(Fe3+2Sn2)[Si2O7]2[Si2O6OH]2Tric. 1
9.BC.35Percleveite-(Ce)Ce2Si2O7Tet. 4 : P41
9.BC.35Percleveite-(La)La2Si2O7Tet. 4 : P41
9.BC.40ScottyiteBaCu2Si2O7Orth. mmm(2/m2/m2/m) : Pmna

Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

Internet Links for KozłowskiiteHide

References for KozłowskiiteHide

Localities for KozłowskiiteHide

Showing 1 localities.

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
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Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for references and further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).

All localities listed without proper references should be considered as questionable.
Poland (TL)
 
  • Lower Silesian Voivodeship
    • Karkonosze County
      • Szklarska Poręba
Pieczka et al. (2022) +2 other references
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